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Preparation and application of 4-amino-4'-nitro azobenzene modified chitosan as a selective adsorbent for the determination of Au(III) and Pd(II)
Wang, Huanfeng1; Bao, Changli1; Li, Fei1; Kong, Xiangfei2; Xu, Jijing1
关键词Azobenzene Modified Chitosan Precious Metal Ions Adsorption Au- Pd-determination
刊名MICROCHIMICA ACTA
2010-02-01
DOI10.1007/s00604-009-0265-9
168期:1-2页:99-105
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]METAL-IONS ; ADSORPTION BEHAVIOR ; GEL BEADS ; RECOVERY ; RESINS ; GOLD ; GOLD(III) ; SORPTION ; PRECONCENTRATION ; MICROSPHERES
英文摘要Crosslinked chitosan was modified with 4-amino-4'-nitroazobenzene and characterized by FT-IR and SEM. The adsorption of Au(III) and Pd(II) was optimum at pH 3.0 for Au(III) and at pH 2.0 for Pd(II), where maximum mass adsorption were 69.93 mg g(-1) and 58.58 mg g(-1), respectively. The adsorption isotherms obey the Langmuir equation in case of Au(III), and the Freundlich and Langmuir equations in case of Pd(II). The adsorption kinetics follows a pseudo-second-order model. This new adsorbent shows high affinity for Au(III) and Pd(II), while the adsorption is negligible for K , Na and Ca and no adsorption of several other metal ions occurs. The method was successfully applied to the determination and separation of Au(III) and Pd(II) in aqueous samples and ore.
语种英语
WOS记录号WOS:000274098300015
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141638
专题中国科学院大连化学物理研究所
作者单位1.Jilin Univ, Coll Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Wang, Huanfeng,Bao, Changli,Li, Fei,et al. Preparation and application of 4-amino-4'-nitro azobenzene modified chitosan as a selective adsorbent for the determination of Au(III) and Pd(II)[J]. MICROCHIMICA ACTA,2010,168(1-2):99-105.
APA Wang, Huanfeng,Bao, Changli,Li, Fei,Kong, Xiangfei,&Xu, Jijing.(2010).Preparation and application of 4-amino-4'-nitro azobenzene modified chitosan as a selective adsorbent for the determination of Au(III) and Pd(II).MICROCHIMICA ACTA,168(1-2),99-105.
MLA Wang, Huanfeng,et al."Preparation and application of 4-amino-4'-nitro azobenzene modified chitosan as a selective adsorbent for the determination of Au(III) and Pd(II)".MICROCHIMICA ACTA 168.1-2(2010):99-105.
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